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What is hard rock geology?
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Hard rock geology is the study of igneous and metamorphic rocks. Igneous rocks, like granite, are formed from the magma in the Earth's mantle. Metamorphic, or 'changed' rocks, like marble, are formed when other rocks have been subjected to heat or pressure. | | A rock |
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Previous:
Back
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Book:
1001
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Section:
Earth
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Chapter:
Rocks and Minerals
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